The mostly likely culprit is the use of a Form component, which stores its ValidationTracker object (by default) in session, creating a session as needed.
You can bind the tracker parameter of the Form component to a simple, non-persistent, property of type ValidationTracker. Your only problem, then, is dealing with server-side input validation errors ... the tracker exists to capture user input and validation errors from the from submit request so that that information can be presented on the subsequent page render request. On Mon, Jan 11, 2010 at 12:16 PM, robinwilson2 <rwils...@gmail.com> wrote: > > We are running a high-volume environment on a 4 server tomcat cluster. Every > so often (about 1 time per month) during peak load times, our Tomcats will > start to thrash on garbage collection. We've traced the problem down to the > sessions being created are taking up all the heap space - even though the > vast majority of sessions are unnecessary because the user is completely > unauthenticated at the time the session is created. > > We have a 6GB heap space on each server - but the authenticated users take > up less then 1/10th of this space, the rest is going to unauthenticated > users. > > We have tuned our session durations down for unauthenticated users to 1 > seconds, but we can still encounter loads that generate sessions for > unauthenticated users so fast that we run out of heap. (Not because we > generate sessions faster than they are being expired - but because Tomcat's > expiration code is very slow, so "old" (past expiration time) sessions > linger for more than an hour during peak load. > > To us, the ideal solution would be to not create sessions if the user is > unauthenticated. We're using Tapestry 5.1.05, and we can't figure out how to > make a page that does not create a session in Tapestry. Can someone point us > in the direction of the documentation on this (if there is any)? > -- > View this message in context: > http://old.nabble.com/I%27d-like-to-have-a-page-with-no-session-for-unauthenticated-users%2C-and-with-a-session-when-the-user-is-authenticated-tp27116942p27116942.html > Sent from the Tapestry - User mailing list archive at Nabble.com. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org > For additional commands, e-mail: users-h...@tapestry.apache.org > > -- Howard M. Lewis Ship Creator of Apache Tapestry The source for Tapestry training, mentoring and support. Contact me to learn how I can get you up and productive in Tapestry fast! (971) 678-5210 http://howardlewisship.com --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
